When to Plant Hollyhock in Marietta, North Carolina (28362)

Location

Marietta, North Carolina

ZIP Code

28362

USDA Zone

Last Frost

Sunday, March 15, 2026

📅 Planting Calendar

Start Seeds Indoors Sunday, February 1, 2026

Transplant Outdoors Sunday, March 29, 2026

Pro Tip: Start Hollyhock seeds indoors 6 weeks before your last frost date, then transplant outdoors around Sunday, March 29, 2026.

🌿 Plant Details

Scientific Name Alcea rosea

Days to Maturity 365 days

Mature Height 48-96"

Spread 24"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Moderate (1 inch/week)

↔️

Spacing

18" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 10-14 days

Ready to Plant Hollyhock in Marietta?

Get your seeds now so they're ready by Sunday, February 1, 2026.

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Growing Hollyhock in Zone 8b

Hollyhock (Alcea rosea) is a popular garden vegetable. In Marietta, North Carolina, which is in USDA Hardiness Zone 8b, you should start seeds indoors around Sunday, February 1, 2026.

Your average last frost date is Sunday, March 15, 2026. Plan to transplant your Hollyhock seedlings outdoors around Sunday, March 29, 2026, about 2 weeks after your last frost date.